ITV has finally released a preview clip of the first episode - "Muse" - from the upcoming fifth series of Endeavour. It will air on Sunday 4th February on ITV1.
​Episode 1 - Muse

Past and present collide in Oxford, as the auction of a priceless Faberge Egg gets underway at Lonsdale College. It soon attracts the attention of an infamous international thief - and consequently the newly christened Thames Valley Constabulary - as Endeavour investigates a failed burglary attempt.

However, they soon have a bigger case to solve, as the gruesome death of a known gangster threatens to expose the growing threat of underworld Oxford. But when a Lonsdale don connected to the auction is murdered in a similarly grisly way, Endeavour begins to suspect the seemingly separate cases may be somehow connected. When the organiser of the auction also meets a bloodthirsty end, he's convinced. The hunt is underway to find a ruthless and violent serial killer, and track down the next victim before it's too late.

Meanwhile, newly-promoted Endeavour struggles with his role as he's forced to mentor young detective constable George Fancy, and a surprise reappearance opens up old wounds.